Underarm sweating and odor is fox odor disease, the reason for fox odor, because the patient’s underarm sweat glands in the exclusion of sweat, did not get cleaned up in a timely manner, combined with bacteria on the body, bacteria will be human sweat decomposition into a variety of unsaturated fatty acids, and constantly accumulate in the underarm area, gradually forming an odor, then fox odor. Fox odor has a genetic tendency, most fox odor patients to adolescents, in adolescence, most of the body is in a high metabolic period, easy to sweat after the activity, if the sweat is not timely cleaning the surface of the skin, or cleaning is not in place, it is easy to let the body’s various sweat glands contact bacteria, triggering folliculitis, after a long period of time is easy to form fox odor. Patients with fox odor should pay attention to personal hygiene in their daily life and, if necessary, need to take antibacterial drugs to relieve symptoms.